These new approvals complete the Airwolf catalog, company officials note.

“Now, every piston aero-engine is approved for our life-prolonging oil filter system without the need for local field approval from the FAA, EASA or Transport Canada,” said Jonny Quest, Airwolf operations director. “We take all the regulatory work off the shoulders of owners and operators. All they have to do is install it.”

The company also is offering a $50 trade-in on ADC oil ‘screen’ filter systems. The offer is limited to one per customer and trade in must have been removed from a certified aircraft and must be accompanied by the original 337 form.

“We recognized early on that engines fitted only with oil screens were prone to early failure because fine particulate matter – sand, metal shards, etc, remained in the oil system, easily bypassing the screen,” Quest added. “Contaminated oil was, in fact, grinding the engines to premature overhaul (TBO). Oil screens simply don’t do the job. Spin-on filters legally allow time between oil changes to double (50 hours versus 25).”